General Science (Chemistry)

UNITS OF MEASURMENTS

Quantity

Units (S.I.)

Quantity

Units(S.I.)

Length

Metre

Viscosity

Poise

Time

Second

Surface tension

Newton/square metre

Mass

Kilogram

Heat

Joule

Area

Square metre

Temperature

Kelvin

Volume

Cubic metre

Absolute temperature

Kelvin

Velocity

Metre/second

Resistance

Ohm

Accelaration

Metre/second square

Electric current

Amphere

Frequancy

Hertz

Magnetic inducation

Gauss

Power

Watt

Luminous flux

Candela

weight

Newton or Kilogram

Intensity of sound

Decribel

Impulse

Newton-second

Power of lens

Diptre

Angular velocity

Radian/second

Depth of sea

Fathom

Density

Kilogram/metre cube

Electomotive force

Volt

Momentum

Kilogram metre/second

Electrical conductivity

Ohm/metre

Work

Joule

Electric energy

Kilo watt hour

Energy

Joule

Electric power

Kilo watt or watt

Force

Newton

Magnetric intensity

Orsted

Pressure

Pascal or Newton/sq.metre

Charge

Coulomb

         

ELEMENTS, SYMBOLS AND ATOMIC NUMBERS

Name

 

Symbol

 

Aomic

Number

 

 

Name

 

 

Symbol

 

 

Atomic

Number

 

Hydrogen

H

1

Iron (Ferium)

Fe

26

Helium

He

2

Cobalt

Co

27

Lithium

Li

3

Nickel

Ni

28

Beryllum

Be

4

Copper (Cupurm)

Cu

29

Boron

B

5

Zinc

Zn

30

Carbon

C

6

Germenium

Ge

32

Nitrogen

N

7

Bromine

Br

35

Oxygen

O

8

Krypton

Kr

36

Flourine

F

9

Zirconium

Zr

40

Neon

Ne

10

Silver

Ag

47

Sodium (Natrium)

Na

11

Tin (Stannum)

Sn

50

Magnesium

Mg

12

Antimony (Stabnium)

Sb

51

Aluminium

Al

13

Iodine

I

53

Silicon

Si

14

Barium

Ba

56

Phosphorous

P

15

Gold (Aurum)

Au

79

Sulphur

S

16

Mercury

(Hydragrem)

Hg

80

Chlorine

Cl

17

Lead (Plumbin)

Pb

82

Argon

Ar

18

Bismuth

Bi

83

Potassium (kallum)

k

19

Radium

Ra

88

Calcium

Ca

20

Thorium

Th

90

Titanium

Ti

22

Uranium

U

92

Vanadium

v

23

Plutonium

Pu

94

Chromium

Cr

24

Curium

Cm

96

Magnanese

Mn

25

 

 

 

               

ORES OF METALS

Name of the elements

Ores

Aluminium (A)

  1. Baxuit, (b) Corundum, (c) kryolite

Iron (Fe)

  1. Haematite, , (b) Magnetite, , (c) Iron pyrite, (d) Siderite

Copper (Cu)

  1. Copper Pyrite, (b) Copper Glance, (c) Malachite

Zinc (Zn)

  1. Zinc Blende, (b) Calamine

Sodium (Na)

  1. Rock Salt, (b) Sodium Carbonate, (c) Syvanite

Mercury (Hg)

  1. Cinnabar, (b) Calomal

Calcium (Ca)

  1. Dolomite, (b) Karmalite

Phosphorous (P)

  1. Lime Stone, (b) Dolomite

Potassium (K0

  1. Phosphorite, (b) Floreapetite

Lead (Pb)

  1. Galena, (b) Anglestite

Tin (Sn)

  1. Tin Pyrites, (b) Cassiterite

Silver (Ag)

  1. Silver Glance, (a) Calverite

   COMMON AND CHEMICAL NAMES OF SOME COMPOUNDS

Common Name

 

Chemical Name

 

Chemical Formules

 

Dry lce

Solid Carbondioxide

CO2

Slaked Lime

Calcium Hydroxide

Ca(OH)2

Bleaching powder

Calcium Oxychloride

CaOCL2

Nausadar

Ammonium Chloride

NH4Cl

Caustic Soda

Sodium Hydroxide

NaOH

Rock Salt

Sodium Chloride

NaCl

Caustic Potash

Potassium Alumminum Sulphate

KOH

Potassium Hydroxide

Potashn Alum

K2SO4.Al2(SO4)3.24H2O

Epsom

Magnesium Sulphate

MgSO4.7H2O

Quick Lime

Calcium Oxide

CaO

Plaster of Paris

Calcium Sulphate

(CaSO4)1/2 H2O

Vermelium

Mercuric Sulphide

HgS

Borax

Borax

Na2B4O7.10H2O

Alcohol

Ethyl Alcohol

C2H5OH

Sugar

Surcose

C12H22O11

Heavy Water

Duterium Oxide

D20

Globar’s Salt

Sodium Sulpose

Na2SO4.10H20

T.N.T

Tri Nitrotoluene

C6H2CH3(NO2)3

Calomel

Mercurous Chloride

HgCl

Sand

Silicon Oxide

SiO2

Gypsum

Calcium Sulphate

CaSO4.2H2O

Green Vitriol

Ferroun Sulphate

FeSO4.7H2O

Mohr’s Salt

Ammonium Ferrous Sulphate

FeSO4(NH4)2SO4.6H2O

Blue Vitriol

Copper Sulphate

CuSO4.5H2O

White Virtiol

Zinc Sulphate

ZnSO4.7H2O

Marsh Gas

Methane

CH4

Vinegar

Acetic Acid

CH3COOH

Patash Ash

Potassium Carbonate

K2CO3

Hypo

Sodium Thiosulphate

Na2S4O3.5H2O

Baking Powder

Sodium Bicarbonate

NaHCO3

Washng Soda

Sodium Carbponate

Na2CO3.10H2O

Magnesia

Manesium Oxide

MgO

Chalk (Marble)

Calcium Carbonate

CaCO3

Lunar Caustic

Silver Nitrate

AgNO3

Laughing Gas

Nitrous Oxide

N2O

Choroform

Tricholoro Methane

CHCl3